The boot sector of the logical FAT32 partition is damaged. (Windows error message is usually The type of the file system is RAW. or The disk in drive D is not formatted. Do you want to format it now?)
In Advanced, select this partition:

Both partitions have been found, but the first NTFS has been found using backup boot sector, we need to restore the boot sector. Choose Write and next choose Backup BS to copy backup boot sector over boot sector.

Recovery of a Dell computer

On Dell computer, there is a special partition called DellUtility.
It's a FAT16 partition that is not visible from Windows because its partition
type is DE.

A FAT32 partition has been found but there is a warning about harddisk geometry.
The BIOS has selected another harddisk geometry because of the content of the MBR (empty in this case).
Under TestDisk, choose geometry, set the number of heads to 255 instead of 240 and run again Analyse.

Two FAT32 partitions to recover

There were two FAT32 on the harddisk but they have been deleted.
After running Analyze, Quick Search and even Deeper Search, TestDisk has found only the second partition.

Disk 81 - CHS 525 255 63 - 4118 MB
L FAT32 384 1 1 524 254 63 2265102

Using A to add what we think is the missing partition,
a new partition table have been written with two FAT32:

Using Advanced, Boot, RebuildBS, we have try to rebuild the boot sector of the first FAT32. Using List,
it is possible to see a listing of files from the root directory but there is also a lot of garbage... Nothing has been written.
In the log file (Expert mode can give this information), we can see that 4 copies of FAT32 have been found:

Normally only two copies of FAT should be found.
There are remaining data from two different FAT32 partitions:
one beginning at 0/1/1, the second at 1/1/1. We have done a mistake. This time, we add the correct partition and choose to Write

TestDisk has been able to find the first partition but this partition is one sector bigger than the actual partition entry. Defrag has overwrite the beginning of the extended partition, clearing the logical partition entry.

The user has choose to only recover the FAT32 partition.
After a backup of its data, he has shrink the FAT32 filesystem to use one sector less.
It's now time to recover the second partition.
The user has manually add the second partition entry.

In Advanced, select the second FAT32 and RebuildBS.
After a reboot and a little filesystem check, data were again available.

Recovery of cdrom session

With multi-session cdrom, it is possible to delete files of previous session.
Because the files are not really deleted, it is possible to recover them.
To read files from the first session, run under Linux

mount /dev/cdrom /mnt/cdrom -t iso9660 -o session=0

Recovery of reformated partition

If the partition has been reformated to another filesystem (FAT32 formated as NTFS or vice-versa),